Home / 378,605.03-522,484.79-206,525.89

Finding the Fourth Proportional to 378,605.03, 522,484.79 and 206,525.89

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Solution

The fourth proportional to 378,605.03, 522,484.79 and 206,525.89 is: 285,011.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,605.03 : 522,484.79 = 206,525.89 : x
  2. Step 2: Convert to fraction form
    378,605.03/522,484.79 = 206,525.89/x
  3. Step 3: Cross multiply
    378,605.03x = 522,484.79 × 206,525.89
  4. Step 4: Simplify right side
    378,605.03x = 107,906,632,621.16
  5. Step 5: Solve for x
    x = 107,906,632,621.16/378,605.03
  6. Step 6: Final answer
    x = 285,011.09

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.